Is WinHelp still on?

[bullseye]

For creating help files, the 1998 Microsoft Visual C++ Handbook still recommends (Ch.20) using Winhelp.
My worry is that WinHelp might not be developed any further in a couple of years (e.g. when 64bit applications arrive).

What do you think? Is there any future in WinHelp?
I'd highly appreciate your judgment.